US3910355A - Sway control device - Google Patents

Sway control device Download PDF

Info

Publication number
US3910355A
US3910355A US392912A US39291273A US3910355A US 3910355 A US3910355 A US 3910355A US 392912 A US392912 A US 392912A US 39291273 A US39291273 A US 39291273A US 3910355 A US3910355 A US 3910355A
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US
United States
Prior art keywords
links
pair
sway
blocks
distance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US392912A
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English (en)
Inventor
Lee E Elfes
Jr Otto Mueller
Jean J Lasoen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Massey Ferguson Inc
Original Assignee
Massey Ferguson Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Massey Ferguson Inc filed Critical Massey Ferguson Inc
Priority to US392912A priority Critical patent/US3910355A/en
Priority to CA203,799A priority patent/CA1013195A/en
Priority to IT25414/74A priority patent/IT1017392B/it
Priority to BR6344/74A priority patent/BR7406344D0/pt
Priority to ES428977A priority patent/ES428977A1/es
Priority to FR7427688A priority patent/FR2245268B1/fr
Priority to AR255274A priority patent/AR202943A1/es
Priority to PL1974173709A priority patent/PL96932B1/pl
Application granted granted Critical
Publication of US3910355A publication Critical patent/US3910355A/en
Assigned to SIEVERS, GEORGE R., AS INDIVIDUAL TRUSTEE, J. HENRY SCHRODER BANK & TRUST COMPANY, A NEW YORK BANKING INSTITUTION AS TRUSTEE reassignment SIEVERS, GEORGE R., AS INDIVIDUAL TRUSTEE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MASSEY-FERGUSON, INC.
Assigned to J. HENRY SCHRODER BANK & TRUST COMPANY, A NY BANKING INSTITUTION (TRUSTEE), SIEVERS, GEORGE R. (INDIVIDUAL TRUSTEE) reassignment J. HENRY SCHRODER BANK & TRUST COMPANY, A NY BANKING INSTITUTION (TRUSTEE) SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MASSEY-FERGUSON INC., A MD. CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B59/00—Devices specially adapted for connection between animals or tractors and agricultural machines or implements
    • A01B59/04—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines pulled or pushed by a tractor
    • A01B59/041—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines pulled or pushed by a tractor preventing or limiting side-play of implements

Definitions

  • ABSTRACT A tractor hitch has removable sway control blocks arranged to cooperate with rub blocks adjustably mounted on pivoted draft links, the sway blocks have guide surfaces located to contact the rub blocks when the links are in a raised transport position to prevent lateral sway and other guide surfaces arranged to contact the draft links to permit limited lateral sway when the links are in a lowered positionv
  • a second set of removable sway blocks when attached has a guide surface located to contact the rub blocks to prevent lateral sway of the links in their lowered position.
  • This invention relates generally to tractor hitches and more particularly to the type of hitch wherein thehitch has means for selectively preventing lateral sway during operation and/or duringtransport of the implement.
  • Farm implements that are carried by an agricultural tractor have become increasingly large. some of these implements are such that lateral sway of the implement relative to the tractor is desirable as where the imple ment is in the ground and'follows a contour. In other cases, such side sway is undesirable. In any instance, sway of theimplement when it is in a raised transport position is undesirable for safe and stable operation.
  • Various types of sway limiting devices have been proposedwhichv involve the use of removable rub means carried by the draft links acting in cooperation with fixed sway preventing means onthe tractor.
  • FIG. 1 is aside elevational view of a portion of a rear
  • FIG. 2 is a sectional view taken along the lines 2-2 ofFIG.l;
  • FIG. 3 is a rear sectional view taken along the lines 33 of FIG. 1;
  • FIG. 4 is a top sectional view taken on-the line 4-4 of FIG. 2;
  • FIG. 5 is a side elevational view similarto FIG. 1 showing the removable portion of the*sway preventing means'removed;
  • FIG. 6 is a sectional view similar to FIG. 2 taken along line 6-6 of FIG. 5; I
  • FIG. 7 is a sectional view taken along the line 77 of FIG. 5 showing the relative portions of the fixed and removable elements of the sway preventing mechanism;
  • FIG. 8 is a side elevational view of the rear portion of a tractor and another embodiment of the invention with the removable sway permitting means in place;
  • FIG. 9 is a rear sectional view taken along line 9-9 of FIG. 8.
  • FIG. 10 is a top sectional view taken along line 10-10 of FIG. 8. 7
  • a tractor generally indicated T having a rear axle shaft 1 carries at the rear end a pair of draft links 3 and 5 which are pivoted on a common axis 7 on the tractor.
  • the links are raised by means of lift links 9 which are pivotally connected at their lower ends to the draft links by pins 13 extending through the respective slots 11 and held in position by blocks 12.
  • the upper ends of the lift links 9 are connected at 15 to a lift lever arm 17 pivoted at 19 and connected to a hydraulic cylinder 21 to be raised and lowered.
  • The-lower endiofthe cylinders 21 arepivoted on the same axis 7 as the lower draft links3 and 5.
  • the tractor is shown connected to a mast 23 of an implement, the rest of which is not shown.
  • the upper end of the mast 23 is pivotally connected at 25 to the link 27 which forms the top link ofa three point hitch.
  • Link 27- is, in turn, attached to the housing 29 on the tractor.
  • the implement mast is attached at its lower end to the draft links through ball coupling joints 31.
  • the sway control means includes a'first pair of cast, or otherwise fabricated, fixed guide rail members 33 bolted-on the tractor and a second pair of removable fabricated guide rail members 35 which are temporarily bolted on'the first members 33.
  • the members 37 have a contoured surface 41 which is seen in FIG. 2 and FIG.' 3', are tapered in both fore and aft and up and down directions. This provides for smoother rubbing action between the blocks 37 and rail members 33 and 35.
  • the upper or first pair of sway control or guide rail members 33 include first outwardly facing guide rail surfaces 43 that extend vertically and are located radially outward from the axis of the draft links in a position to be contacted by the inner apex surface on the rub blocks member 37 when the links are fully raised to the transport position shown in dashed lines in FIGS. 5, 6 and 7.
  • the guide members 33 also have lower outwardly facing guide rail surfaces 45.
  • the guide surfaces 45 are located on the edge of a reduced radius portion of the member 33 so that it is the inner sides ofthe draft links 3 and 5 that contact the surfaces 45 instead of the rub block members 37. This means that the total maximum sway of the links is determined not only by the difference .between lateral spacing of surfaces 45 compared to the same spacing between surfaces 43 but also by the width of the rub block 37.
  • the rub blocks 37 can be adjusted to a Zero sway position by loosening the bolts 39 and moving the blocks along the links until both blocks are in contact with the guide rail surface 43 on member 33 or 51 on member 35.
  • the upper guide rails 48, and lower guide rails 52, 53 are removably mounted on plates 54, 55 by the bolts 56, 57, respectively. These plates are removably mounted on the housing 29 by bolts 58. The plates are further supported by the L- shaped beam 59, which is welded to the plates.
  • the guide rails are curved about the pivot of the lower links 3, S.
  • the plates 54, 55 extend rearwardly supporting the rails which guide and hold the links through the rub blocks 66, 67.
  • the upper guide rails 50, 51 have sloped, wedgeshaped surfaces 61, 62 and the lower guide rails 52, 53 have sloped, wedge-shaped surfaces 63, 64.
  • the sloped surfaces 61, 62 function as ramps on the rails 48, 50 and guide the rub blocks on to the surfaces 72, 73.
  • the rub blocks 66, 67 are fastened to the links 3, 5 by the bolts and nuts 68, 69 and the surfaces 70, 71 engage the rails 50, 51 and 52, 53, respectively.
  • a tractor hitch including a pair of laterally spaced draft links pivotally mounted on a tractor frame for up and down vertical movement about a transverse axis between a lower operative position and an upper transport position, and for lateral sway in a plane passing through said axis, a first pair of laterally spaced sway blocks mounted on said frame, a second pair of laterally spaced sway blocks removably mounted on said frame, means for removably attaching said second pair of sway blocks to said frame, said first pair of sway blocks having first upper outwardly facing vertical sur faces spaced apart a first distance and located on a first predetermined radius from the transverse axis and having second lower outwardly facing vertical surfaces at said operative position spaced apart a second distance substantially less than said first distance and located a distance from said transverse axis less than said predetermined radius, said second pair of sway blocks having outwardly facing vertical surfaces spaced apart when mounted on said frame a distance equal to said first distance and located a distance from
  • lift means are connected to each link to raise the same, said lift means comprising a pair of lift cylinders pivotally mounted on said transverse axis and pivotally connected to a pair of spaced pivotally mounted levers, lift links pivotally connected at one end to said levers and at their other end to said draft links.

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  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Machines (AREA)
US392912A 1973-08-30 1973-08-30 Sway control device Expired - Lifetime US3910355A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US392912A US3910355A (en) 1973-08-30 1973-08-30 Sway control device
CA203,799A CA1013195A (en) 1973-08-30 1974-07-02 Sway control device
IT25414/74A IT1017392B (it) 1973-08-30 1974-07-23 Dispositivo di controllo di oscillazione
BR6344/74A BR7406344D0 (pt) 1973-08-30 1974-08-02 Um engate de trator
ES428977A ES428977A1 (es) 1973-08-30 1974-08-05 Un organo de enganche para tractor.
FR7427688A FR2245268B1 (pt) 1973-08-30 1974-08-09
AR255274A AR202943A1 (es) 1973-08-30 1974-08-22 Organo de enganche para tractores
PL1974173709A PL96932B1 (pl) 1973-08-30 1974-08-28 Urzadzenie sprzegajace ciagnik z narzedziem rolniczym

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US392912A US3910355A (en) 1973-08-30 1973-08-30 Sway control device

Publications (1)

Publication Number Publication Date
US3910355A true US3910355A (en) 1975-10-07

Family

ID=23552527

Family Applications (1)

Application Number Title Priority Date Filing Date
US392912A Expired - Lifetime US3910355A (en) 1973-08-30 1973-08-30 Sway control device

Country Status (8)

Country Link
US (1) US3910355A (pt)
AR (1) AR202943A1 (pt)
BR (1) BR7406344D0 (pt)
CA (1) CA1013195A (pt)
ES (1) ES428977A1 (pt)
FR (1) FR2245268B1 (pt)
IT (1) IT1017392B (pt)
PL (1) PL96932B1 (pt)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4116459A (en) * 1976-12-30 1978-09-26 Allis-Chalmers Corporation Safety lock for articulated joint on vehicle
US4181181A (en) * 1977-11-21 1980-01-01 Massey-Ferguson Inc. Tractor implement hitch with rubbing surfaces to limit sway
US4268057A (en) * 1979-09-21 1981-05-19 J. I. Case Company Control device for three-point hitch
US4470613A (en) * 1981-11-24 1984-09-11 David Brown Tractors Ltd. Tractor hitches
US4519623A (en) * 1983-05-09 1985-05-28 Orthman Manufacturing, Inc. Tractor front end hitch
DE3517489A1 (de) * 1985-05-15 1986-11-20 Klöckner-Humboldt-Deutz AG, 5000 Köln Geraeteanbauvorrichtung fuer ackerschlepper
US4715610A (en) * 1986-05-13 1987-12-29 Deere & Company Hitch for a vehicle having a single rear wheel
US4862971A (en) * 1988-09-19 1989-09-05 J. I. Case Company Sway limiting means for a tractor hitch
US5515928A (en) * 1993-05-04 1996-05-14 Niday; Louis L. Aligning a three-point hitch mounted implement with predetermined rows
US5601146A (en) * 1995-08-15 1997-02-11 Case Corporation Hitch assembly for a tractor
US5823268A (en) * 1996-03-29 1998-10-20 Barnes; Ronny L. Trailer hitch anti-sway device
US6044915A (en) * 1995-07-11 2000-04-04 Case Corporation Hitch rocker for a work vehicle
EP0990381A1 (en) * 1998-09-29 2000-04-05 CBM S.p.A. System of lower arms for three-point hitches, having lateral stabilisers, in particular for special narrow-track tractors.
US6065549A (en) * 1998-08-26 2000-05-23 Case Corporation Limited sway cam
US6109814A (en) * 1998-01-02 2000-08-29 Case Corporation "Float/no-float" mechanism for 3-point hitch
EP1116431A1 (en) * 2000-01-12 2001-07-18 Deere & Company Tractor hitch with sway bumper
EP1116430A1 (de) * 2000-01-12 2001-07-18 Cramer Kupplung GmbH & Co. KG Dreipunktaufhängung für einen Traktor, Schlepper oder dergleichen
US6591918B1 (en) 2002-06-07 2003-07-15 Deere & Company Agricultural tractor hitch
US20060042131A1 (en) * 2004-08-30 2006-03-02 Caterpillar Inc. Wear pad for an extendable linkage
US20060096766A1 (en) * 2004-04-05 2006-05-11 Harley Warlick Farm tractor lift arm lock
US20060278413A1 (en) * 2005-05-23 2006-12-14 Martin Heitlinger Three point hitch for a tractor used for viticulture and/or fruit culture
US20070044981A1 (en) * 2005-08-31 2007-03-01 Cnh America Llc Sway restrictor bracket for a draft link of a three point hitch
US20070209810A1 (en) * 2005-08-31 2007-09-13 Mozingo Robert E Three point hitch frame, draft arm and rear counterweight design
US20230067078A1 (en) * 2021-08-31 2023-03-02 Cnh Industrial America Llc Wear block assembly for a three-point hitch
US11684002B2 (en) 2020-12-15 2023-06-27 Deere & Company Sway adjustment apparatus
USD1008110S1 (en) 2021-08-31 2023-12-19 Cnh Industrial America Llc Lower sway block element for a three-point hitch assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600094674A1 (it) * 2016-09-21 2018-03-21 Seppi M Ag S P A Un sistema di attacco per macchinari

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935147A (en) * 1955-08-01 1960-05-03 Deere & Co Hitch device
US2987126A (en) * 1958-07-14 1961-06-06 Deere & Co Hitch device
US3047076A (en) * 1960-11-28 1962-07-31 Int Harvester Co Hitch sway limiting device
US3627060A (en) * 1970-03-11 1971-12-14 Deere & Co Draft link sway control mechanism
US3709304A (en) * 1970-12-28 1973-01-09 Allis Chalmers Mfg Co Sway arrestor for a three point hitch
US3721302A (en) * 1971-09-16 1973-03-20 Deere & Co Draft link sway limiting device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935147A (en) * 1955-08-01 1960-05-03 Deere & Co Hitch device
US2987126A (en) * 1958-07-14 1961-06-06 Deere & Co Hitch device
US3047076A (en) * 1960-11-28 1962-07-31 Int Harvester Co Hitch sway limiting device
US3627060A (en) * 1970-03-11 1971-12-14 Deere & Co Draft link sway control mechanism
US3709304A (en) * 1970-12-28 1973-01-09 Allis Chalmers Mfg Co Sway arrestor for a three point hitch
US3721302A (en) * 1971-09-16 1973-03-20 Deere & Co Draft link sway limiting device

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4116459A (en) * 1976-12-30 1978-09-26 Allis-Chalmers Corporation Safety lock for articulated joint on vehicle
US4181181A (en) * 1977-11-21 1980-01-01 Massey-Ferguson Inc. Tractor implement hitch with rubbing surfaces to limit sway
US4268057A (en) * 1979-09-21 1981-05-19 J. I. Case Company Control device for three-point hitch
US4470613A (en) * 1981-11-24 1984-09-11 David Brown Tractors Ltd. Tractor hitches
US4519623A (en) * 1983-05-09 1985-05-28 Orthman Manufacturing, Inc. Tractor front end hitch
DE3517489A1 (de) * 1985-05-15 1986-11-20 Klöckner-Humboldt-Deutz AG, 5000 Köln Geraeteanbauvorrichtung fuer ackerschlepper
US4715610A (en) * 1986-05-13 1987-12-29 Deere & Company Hitch for a vehicle having a single rear wheel
US4862971A (en) * 1988-09-19 1989-09-05 J. I. Case Company Sway limiting means for a tractor hitch
US5515928A (en) * 1993-05-04 1996-05-14 Niday; Louis L. Aligning a three-point hitch mounted implement with predetermined rows
US6044915A (en) * 1995-07-11 2000-04-04 Case Corporation Hitch rocker for a work vehicle
US5601146A (en) * 1995-08-15 1997-02-11 Case Corporation Hitch assembly for a tractor
US5823268A (en) * 1996-03-29 1998-10-20 Barnes; Ronny L. Trailer hitch anti-sway device
US6109814A (en) * 1998-01-02 2000-08-29 Case Corporation "Float/no-float" mechanism for 3-point hitch
US6065549A (en) * 1998-08-26 2000-05-23 Case Corporation Limited sway cam
EP0990381A1 (en) * 1998-09-29 2000-04-05 CBM S.p.A. System of lower arms for three-point hitches, having lateral stabilisers, in particular for special narrow-track tractors.
EP1116431A1 (en) * 2000-01-12 2001-07-18 Deere & Company Tractor hitch with sway bumper
EP1116430A1 (de) * 2000-01-12 2001-07-18 Cramer Kupplung GmbH & Co. KG Dreipunktaufhängung für einen Traktor, Schlepper oder dergleichen
JP2001197803A (ja) * 2000-01-12 2001-07-24 Deere & Co トラクタのヒッチのための振動緩衝装置
US6371217B1 (en) 2000-01-12 2002-04-16 Deere & Company Sway bumper for tractor hitch
US6591918B1 (en) 2002-06-07 2003-07-15 Deere & Company Agricultural tractor hitch
US20060096766A1 (en) * 2004-04-05 2006-05-11 Harley Warlick Farm tractor lift arm lock
US20060042131A1 (en) * 2004-08-30 2006-03-02 Caterpillar Inc. Wear pad for an extendable linkage
US7293377B2 (en) * 2004-08-30 2007-11-13 Caterpillar Inc. Wear pad for an extendable linkage
US20060278413A1 (en) * 2005-05-23 2006-12-14 Martin Heitlinger Three point hitch for a tractor used for viticulture and/or fruit culture
US20070044981A1 (en) * 2005-08-31 2007-03-01 Cnh America Llc Sway restrictor bracket for a draft link of a three point hitch
US20070209810A1 (en) * 2005-08-31 2007-09-13 Mozingo Robert E Three point hitch frame, draft arm and rear counterweight design
US7377330B2 (en) * 2005-08-31 2008-05-27 Cnh America Llc Sway restrictor bracket for a draft link of a three point hitch
US7686097B2 (en) * 2005-08-31 2010-03-30 Cnh America Llc Three point hitch frame, draft arm and rear counterweight design
US11684002B2 (en) 2020-12-15 2023-06-27 Deere & Company Sway adjustment apparatus
US20230067078A1 (en) * 2021-08-31 2023-03-02 Cnh Industrial America Llc Wear block assembly for a three-point hitch
USD1008110S1 (en) 2021-08-31 2023-12-19 Cnh Industrial America Llc Lower sway block element for a three-point hitch assembly

Also Published As

Publication number Publication date
PL96932B1 (pl) 1978-01-31
AR202943A1 (es) 1975-07-31
ES428977A1 (es) 1976-09-01
IT1017392B (it) 1977-07-20
FR2245268B1 (pt) 1978-02-17
FR2245268A1 (pt) 1975-04-25
CA1013195A (en) 1977-07-05
BR7406344D0 (pt) 1975-09-23

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Legal Events

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AS Assignment

Owner name: J. HENRY SCHRODER BANK & TRUST COMPANY, A NEW YOR

Free format text: SECURITY INTEREST;ASSIGNOR:MASSEY-FERGUSON, INC.;REEL/FRAME:004164/0687

Effective date: 19830217

Owner name: SIEVERS, GEORGE R., AS INDIVIDUAL TRUSTEE

Free format text: SECURITY INTEREST;ASSIGNOR:MASSEY-FERGUSON, INC.;REEL/FRAME:004164/0687

Effective date: 19830217

AS Assignment

Owner name: SIEVERS, GEORGE R. (INDIVIDUAL TRUSTEE)

Free format text: SECURITY INTEREST;ASSIGNOR:MASSEY-FERGUSON INC., A MD. CORP.;REEL/FRAME:004583/0684

Effective date: 19860509

Owner name: J. HENRY SCHRODER BANK & TRUST COMPANY, A NY BANKI

Free format text: SECURITY INTEREST;ASSIGNOR:MASSEY-FERGUSON INC., A MD. CORP.;REEL/FRAME:004583/0684

Effective date: 19860509